冀东都山地区富锶矿泉水锶的运移与赋存特征分析

为了研究冀东都山地区锶的运移和矿泉水体的赋存特征,通过收集资料和水文地质调查,采用岩矿鉴定试验和PHREEQC模型确定矿物成分,分析锶的运移路径,都山岩区深部构造裂隙水中锶的含量主要受垂向地下水补给影响,水平向地下水径流对锶含量的影响较小.基于此,分析含锶矿泉水的分布特征,并结合可控源音频大地电磁测深法和氡气测量法,探讨了矿泉水体的赋存特征.结果表明:研究区岩体锶的含量高是物质基础,锶通过化学变化,可以随钙等离子一起迁移、分异和富集;都山断裂构造较发育,为矿泉水体提供了赋存空间和径流通道;在高温、高压等特定环境下,地下水的长期径流及与岩石的溶滤、混合、水解和变质等作用下,锶随水体沿裂隙带不断向地下深部运移、富集形成锶型矿泉水体.最后,成井后水质和水量满足锶型矿泉水开采条件.通过分析该地区锶的运移和矿泉水体的赋存特征,为矿泉水规模化开发利用提供科学依据.

Study on the migration of strontium and occurrence characteristics of the strontium mineral water in Dushan area, Eastern Hebei province

In order to study the migration of strontium and the occurrence characteristics of mineral water in Dushan area of Eastern Hebei Province, through collecting data and hydrogeological investigation, using rock-mineral identification test and PHREEQC model to determine the mineral composition, and analyzing the migration path of strontium, it is considered that the content of Strontium in the deep tectonic crack water in Dushan area is mainly affected by the vertical groundwater supply, while the horizontal groundwater runoff has little influence on the content of strontium. Based on this, the distribution characteristics of strontium mineral water are analyzed, and the occurrence characteristics of mineral water are discussed in combination with the controlled source audio magnetotelluric method and radon measurement, which are: (1) the high content of strontium is the material basis in the study area, and strontium can be migrated, differentiated and enriched with calcium plasma through chemical changes; (2) the fracture structure is relatively developed in Dushan area, which provides mineral water with Storage space and runoff channel; (3) under the specific environment of high temperature and high pressure, strontium is continuously transported and enriched to the deep underground along the fracture zone to form strontium mineral water body, affected by the long-term runoff of groundwater and the dissolution, filtration, mixing, hydrolysis and metamorphism with rocks.